Steps
Mobile System Notification Settings
IOS System: Mobile system Settings > Notifications > DingTalk > turn on Allow Notifications > turn Sound on or off. Android System: Mobile system Settings > Apps and services > App management > DingTalk > Notification management > turn Allow Notifications on or off.DingTalk New Email Notification Settings
Open the DingTalk mobile app > More > Mail > tap … in the upper-right corner > Settings > turn on New email notifications. Tip: If notifications are enabled but you still do not receive new email notifications, try signing out and signing back in:- DingTalk mobile app > More > Mail > … in the upper-right corner > Settings > tap the signed-in mailbox > Sign out.
- Return to Settings > Add another personal email account, then sign in to the mailbox again.